Date: Sun, 07 Oct 2001 00:50:01 -0700 From: Darryl Okahata <darrylo@soco.agilent.com> To: freebsd-stable@FreeBSD.ORG Subject: Slow samba performance w/DOS (Drive Image 5.0). Message-ID: <200110070750.AAA22558@mina.soco.agilent.com>
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[ This is being posted so that it gets put into the archives. ]
If you are experiencing slow samba performance with DOS clients,
where samba-to-DOS is fine, but where DOS-to-samba is very slow
(~60KB/sec, in my case), the solution is to upgrade to the latest
version of samba and apply the fixes outlined in:
http://groups.google.com/groups?hl=en&lr=lang_en&threadm=9ktrkl%24g7f%241%40FreeBSD.csie.NCTU.edu.tw&rnum=15&prev=/groups%3Fas_q%3Dsamba%2520slow%26as_oq%3Ddos%2520msdos%26lr%3Dlang_en%26num%3D100%26as_scoring%3Dd
However, if you're still experiencing slow transfers from samba to DOS,
you may have to further decrease SO_RCVBUF. In my case, I was still
having abysmal throughput with Drive Image 5.0, even though the DOS copy
command was (finally!) able to transfer data quickly. I was able to fix
this using a buffer size of 4096 (8192 did not work), such as (in
smb.conf):
socket options = TCP_NODELAY SO_RCVBUF=4096
(I should have tried, but did not, increasing SO_RCVBUF to locate the
threshold where the throughput drops.)
--
Darryl Okahata
darrylo@soco.agilent.com
DISCLAIMER: this message is the author's personal opinion and does not
constitute the support, opinion, or policy of Agilent Technologies, or
of the little green men that have been following him all day.
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